Abstract: To use the hardware resources effectively and supply higher quality service, a scheme of caching and scheduling in the streaming media system based on BitTorrent was proposed.First, the caching replacement algorithm based on value function (CAVF) took the popularity and the relation between supply and request of media segment into consideration.Second, according to the characteristics of the request data segment and the band of the node, a scheduling algorithm based on segment priority (SASP) was designed.Resultsshow that the scheme improves the cache hit, reduces consumption of server's load and enhances the media player continuous degrees effectively.